CVE-2026-102777: Joomla Extension - svenbluege.de - Server-side request forgery in the Google Photos picker in Event Gallery ex

Q: How do I fix CVE-2026-102777?

event gallery: upgrade to 6.6.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-102777 being exploited?

CVE-2026-102777 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-102777 affect?

CVE-2026-102777 affects event gallery. Severity is medium (CVSS 6.5). Joomla Extension - svenbluege.de - Server-side request forgery in the Google Photos picker in Event Gallery extension < 6.6.0 - The Google Photos picker of the back-end upload page fetches the thumbnails of the picked images through the ser

Q: How urgent is CVE-2026-102777?

Priority 28/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-102777 is a medium-severity flaw (CVSS 6.5) affecting event gallery. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Joomla Extension - svenbluege.de - Server-side request forgery in the Google Photos picker in Event Gallery extension < 6.6.0 - The Google Photos picker of the back-end upload page fetches the thumbnails of the picked images through the server, with the OAuth access token of the Google Photos account. The task took the address to fetch from the request without checking it and asked for no form token. A prepared page on another web site could ther

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-10-05
Last modified	2026-10-14

Publisher (CNA): Joomla! Project · Vendor: svenbluege

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-05 17:17 UTCPublished CVE record published
2026-10-14 18:46 UTCUpdated Record last modified

svenbluege event gallery UPGRADE

Affected: < 6.6.0

Fixed in: 6.6.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy event-gallery || rpm -q event-gallery || event-gallery --version

2. UPGRADE to 6.6.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade event-gallery

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade event-gallery

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-102777?

event gallery: upgrade to 6.6.0. Exact commands for each OS are on this page.

Is CVE-2026-102777 being exploited?

CVE-2026-102777 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-102777 affect?

CVE-2026-102777 affects event gallery. Severity is medium (CVSS 6.5). Joomla Extension - svenbluege.de - Server-side request forgery in the Google Photos picker in Event Gallery extension < 6.6.0 - The Google Photos picker of the back-end upload page fetches the thumbnails of the picked images through the ser

How urgent is CVE-2026-102777?

Priority 28/100. No elevated risk signals yet.

Software pages

Joomla vulnerabilities

Related CVEs

CVE-2026-102776 MEDIUM 4.3 UPGRADE Joomla Extension - svenbluege.de - Cross-site request forgery of list tasks of the backend in Event Gallery ex
CVE-2026-102778 MEDIUM 6.1 UPGRADE Joomla Extension - svenbluege.de - Cross-site scripting and open redirect on the share mini page in Event Gall

References

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